Diner Supply is a term used to describe the items needed to run a diner. This includes spatulas, eggs, and tomatoes. Spatulas are utensils used for flipping and stirring food while cooking. Eggs are a common ingredient in many dishes, including omelets and breakfast sandwiches. Tomatoes are a versatile vegetable that can be used in salads, sandwiches, and sauces. All of these items are essential for running a successful diner.